The modern soul Li Xuan traveled to the first year of Yonghui in the Tang Dynasty and took over the dilapidated Yumen Pass. He used modern knowledge to improve military equipment, develop agriculture and commerce, lead his troops to repel the Turks, defeat Tibet, and disintegrate its conspiracy with Dashi.
He opened up the "Tian Khan Road", connected Rome and Persia, promoted the prosperity of the Silk Road with technologies such as curved shaft plow and telescope, and established a power in the Western Region that far exceeded the four towns of Anxi. From a gatekeeper to a pioneer connecting the east and west, Li Xuan made Yumen Pass a hub connecting the world, playing a glorious chapter for all nations to come to Korea.
